<template>
    <div>
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
       </el-breadcrumb>

       <el-card >
            <el-row :gutter="30">
                <el-col :span="10">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                      <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                   </el-input>
                </el-col>
                <el-col :span="3"> <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button></el-col>
            </el-row>
            <!-- 用户列表区 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态" >
                    <!-- 利用作用域插槽的固定写法拿到数据 -->
                    <template slot-scope="scope">
                        <!-- {{scope.row}}拿到全部数据 -->
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                       <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                       <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                       <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
                             <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                background
                layout="prev, pager, next"
                :total="total"
                @current-change="handleCurrentChange"
                :current-change="queryInfo.pagenum">
            </el-pagination>
        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed">
        <!-- 内容主体区 -->
           <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" >
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
           </el-form>  
           <!-- 底部按钮区 -->
            <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
           </span>
        </el-dialog>
        <el-dialog
        title="编辑用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @click="editDialogClosed"
       >
        <!-- 内容主体区 -->
           <el-form :model="eddForm" :rules="addFormRules" ref="eddFormRef" label-width="100px">
                <el-form-item label="用户名">
                    <el-input v-model="eddForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="eddForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="eddForm.mobile"></el-input>
                </el-form-item>
           </el-form>
           <!-- 底部按钮区 -->
            <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
           </span>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%">
        <div>
            <p>当前的用户 ：{{userinfo.username}}</p>
            <p>当前的角色 ：{{userinfo.role_name}}</p>
            <p>分配新角色:
                <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                    v-for="item in rolesList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                    </el-option>
                </el-select>
            </p>
        </div>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
        </el-dialog>
     </div>
</template>


<script>
export default {
    data(){
         var  checkEmail = (rule,value,cb) => {
                const regEmail =/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/ 
                if(regEmail.test(value)){
                    return cb()
                }
                cb(new Error('请输入合法的邮箱'))
            }
            
         var   checkMobile = (rule,value,cb) => {
                const regMobile =/^1([38][0-9]|4[579]|5[0-3,5-9]|6[6]|7[0135678]|9[89])\d{8}$/ 
                if(regMobile.test(value)){
                    return cb()
                }
                cb(new Error('请输入合法的手机号'))
            }
        return {
            queryInfo: {
                query:'',
                pagenum:1,
                pagesize:10
            },
            userlist:[],
            total:0,
            addDialogVisible:false,
            editDialogVisible:false,
            setRoleDialogVisible:false,
        //    需要被分配角色的用户信息
           userinfo:{},
        //    所有角色列表
           rolesList:[],
           selectedRoleId:'',
           
            // 添加用户的表单数据
            addForm: {
                username:'',
                password:'',
                email:'',
                mobile:'',
            },
            eddForm:{

            },
            // 添加表单验证规则对象
            addFormRules:{
                username:[
                    {required:true,message:'请输入用户名',trigger:'blur'},
                    {min:3,max:10,message:'用户名的长度在3-10之间',trigger:'blur'}
                ],
                password:[
                    {required:true,message:'请输入密码',trigger:'blur'},
                    {min:3,max:10,message:'密码的长度在3-10之间',trigger:'blur'}
                ],
                email:[
                    {required:true,message:'请输入邮箱',trigger:'blur'},
                    {validator: checkEmail, trigger: 'blur' },
                ],
                mobile:[
                    {required:true,message:'请输入手机号',trigger:'blur'},
                    {validator: checkMobile, trigger: 'blur' },
                ],
            },
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
       async getUserList(){
            // 通过api拿数据 users 是api的请求地址 后面是要拿到的参数
           const {data:res} = await this.$http.get('users',{params:this.queryInfo})
           if(res.meta.status!==200){
               return this.$message.error('获取用户列表失败')
           }
            this.userlist = res.data.users
            this.total = res.data.total
           console.log(res)
        },
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听switch开关状态的改变
        async userStateChanged(userinfo){
           const {data:res} =  await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
           if(res.meta.status!==200){
               userinfo.mg_state = !userinfo.mg_state
               return this.$message.error('更新失败')
           }
            this.$message.success('更新成功')
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        // 表单提交 如果都通过校验 valid才会是true
        addUser(){
            this.$refs.addFormRef.validate(async valid =>{
                if(!valid) return
                const {data:res} = await this.$http.post('users',this.addForm)
                if(res.meta.status!==201) return this.$message.error('添加失败')
                this.$message.success('添加成功')
                this.addDialogVisible = false
                this.getUserList()
            })
        },
        // 展示编辑对话框
        async showEditDialog(id){
          const {data:res} = await this.$http.get('users/'+id)
           if(res.meta.status!==200) this.$message.error('失败')
            this.eddForm = res.data
            this.editDialogVisible = true
        },
        editDialogClosed(){
            this.$refs.eddFormRef.resetFields()
        },
        editUserInfo(){
            this.$refs.eddFormRef.validate(async valid=>{
                if(!valid) return
             const {data:res} = await this.$http.put('users/' + this.eddForm.id,{
                 email:this.eddForm.email,
                mobile:this.eddForm.mobile
             })
                
                if(res.meta.status!==200) return this.$message.error('请求失败')

                this.editDialogVisible = false
                this.$message.success('更新成功')
                this.getUserList()
            })
        },
        async removeUserById(id){
          const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
        }).catch(err => err)
        if(confirmResult!=='confirm'){
            return this.$message.info('已取消')
        }
        const {data:res}  =   await this.$http.delete('users/'+ id)
        if(res.meta.status!==200) return this.$message.error('删除失败')
        this.$message.success('删除成功')
        this.getUserList()
        },
        // 展示分配角色对话框
       async setRole(userinfo){
            this.userinfo=userinfo
            // 获取所有角色列表
        const {data:res}  = await this.$http.get('roles')
                if(res.meta.status!==200) return this.$message.error('失败')
                this.rolesList = res.data
            this.setRoleDialogVisible = true
        },
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色')
            }
        const {data:res} = await this.$http.put(`users/${this.userinfo.id}/role`,{rid:this.selectedRoleId})
            if(res.meta.status!==200) return this.$message.error('错误')
            this.$message.success('更新成功')
            this.getUserList()
            this.setRoleDialogVisible = false
       }

    },
}
</script>


<style scoped>
.el-breadcrumb{
    margin-bottom: 25px;
}
.el-table{
    margin-top: 25px;
    font-size: 12px;
}
.el-pagination{
    margin-top: 25px;
}


</style>